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ToF - The Time-of-Flight Device for H1

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Abstract

Event triggering for the H1 detector on the HERA electron-proton ring is dominated
by background associated with the proton beam. A 99% reduction in trigger
rate is achieved by time resolution of background from physics using ToF -a scintillator
detector positioned in the incoming proton direction. Studies on the efficiency
of the veto have been carried out to improve background rejection.